date_ical 7.x-2.8

New features:
Added hook_date_ical_timezone_alter(), allowing users to alter timezone strings from imported iCal feeds before they get converted into DateTimeZone objects. (see #12 from #1608132: ical download issue for an example.)

Bug fixes:
The ical views plugins were not using the function option_defintion() correctly, which was breaking initial view setup and Features export (see #1994870: implement options_definition on date_ical_plugin_style_ical_feed so views export works.)
The formatting that was being done to long text fields for the purpose of iCal compliance was going way overboard, so I streamlined and improved it.